.login_box {
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
}
.form_box {
  /* 双击避免选中 */
  user-select: none;
  /*  */
  width: 420px;
  height: 460px;
  background-color: rgba(225, 225, 235, 0.5);
  border-radius: 30px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 30px 28px;
  margin-top: 8px;
}
.form_box img {
  display: block;
  margin: 0 auto;
  margin-bottom: 30px;
}
.login-form{
  padding: 50px, 40px;
}
.login-form-button{
  border-radius: 20px;
}